121222101211121 has 8 divisors (see below), whose sum is σ = 127674754310400. Its totient is φ = 114776702362800.

The previous prime is 121222101211093. The next prime is 121222101211129. The reversal of 121222101211121 is 121112101222121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121222101211121 - 2²² = 121222097016817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121222101211093 and 121222101211102.

It is not an unprimeable number, because it can be changed into a prime (121222101211129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1813528430 + ... + 1813595271.

It is an arithmetic number, because the mean of its divisors is an integer number (15959344288800).

Almost surely, 2^{121222101211121} is an apocalyptic number.

It is an amenable number.

121222101211121 is a deficient number, since it is larger than the sum of its proper divisors (6452653099279).

121222101211121 is a wasteful number, since it uses less digits than its factorization.

121222101211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3627125479.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 121222101211121 its reverse (121112101222121), we get a palindrome (242334202433242).

It can be divided in two parts, 12122210 and 1211121, that added together give a palindrome (13333331).

The spelling of 121222101211121 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred one million, two hundred eleven thousand, one hundred twenty-one".